Pen



FIG. 1 is a perspective view of a pen showing my new design.

FIG. 2 is a front elevational view of FIG. 1.

FIG. 3 is a right side elevational view of FIG. 1, the left side elevational view being a mirror image thereof.

FIG. 4 is a rear elevational view of FIG. 1.

FIG. 5 is a top plan view of FIG. 1.

FIG. 6 is a bottom plan view of FIG. 1; and,

FIG. 7 is an exploded perspective view of FIG. 1.

The broken lines in FIGS. 1-7 showing the cap, writing tip housing, and end opposite from the writing tip are included for the purpose of illustrating portions that form no part of the claimed design. 

The ornamental design for a pen, as shown and described. 